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Nothing happens to the mortgage automatically. A joint mortgage is a joint and several liability, which means each of you is responsible for the whole payment, not half of it, and that continues until the mortgage itself is changed. A final order (formerly the decree absolute), a separation agreement or moving out does not alter it.
There are three usual routes. One of you keeps the home and takes over the mortgage through a transfer of equity, normally with a buy-out of the other’s share. You sell and split the proceeds. Or one of you stays for a set period under a court order or written agreement while the mortgage remains joint.
Do I still have to pay the mortgage if I have moved out?
Yes. The lender’s contract is with both names on the mortgage and it does not care who lives there. If the person in the house stops paying, the lender can pursue the one who left, and any missed payment goes on both credit files. Agreeing between yourselves who pays is sensible, but it does not bind the lender.
Can one person take over a joint mortgage?
Sometimes, subject to affordability. The lender has to be satisfied that the remaining borrower can afford the full loan alone. That is a fresh application in all but name, and on a single income it is the point where many cases stall.
This article covers the mortgage mechanics. Who is entitled to what is a legal question, and you should take legal advice on it, whether or not you were married.
Joint and several liability means each of you owes the whole payment until the mortgage is changed
The three routes are a transfer of equity with a buy-out, a sale and split, or one staying under an agreement
To release one name a lender needs the remaining borrower to pass affordability on their own income
How does a transfer of equity and buy-out work?
A transfer of equity removes one name from the property title and the mortgage and leaves the other as sole owner and sole borrower. It is done by a solicitor, and the lender must consent to it because their security is changing.
The buy-out is the payment for the departing person’s share of the equity. Take a house worth £400,000 with a £250,000 mortgage. The equity is £150,000. If the agreed split is half each, the person staying needs £75,000 to buy the other out. My what is equity article explains how that figure is reached.
Few people have £75,000 in cash, so the buy-out is usually borrowed. The person staying applies to take the existing £250,000 into their sole name and raise a further £75,000 on top, a total of £325,000. The lender tests that £325,000 against one income, one set of outgoings and any maintenance paid or received. A single salary that comfortably supported half of £250,000 often does not support all of £325,000, and that is the arithmetic that decides most cases.
The split itself is not always half. A court can order an unequal division, and unmarried couples may have a deed of trust or contributions that shift it. That is a legal question, not a lending one.
The process runs as a remortgage with a transfer of equity attached. It can stay with the current lender, who will assess the remaining borrower and may charge an administration fee, or move to a new lender if the current one declines or a better product exists elsewhere. Moving lender inside a fixed period triggers the early repayment charge, so the timing of the fix matters. The transfer of equity page covers the application and the documents.
Timescales vary. The mortgage part usually runs to the same timescale as any remortgage; the solicitor’s part depends on how quickly both sides sign.
What does a lender need to release one person from a mortgage?
Three things, broadly.
Affordability on one income. The lender runs its full assessment on the remaining borrower alone, including the new total loan if a buy-out is being borrowed. Maintenance received can count as income with some lenders if it is evidenced by a court order or a consistent bank statement history; maintenance paid is deducted as a commitment. Child benefit and tax credits are accepted by some lenders and not others.
Consent from both parties. The departing person has to sign the transfer, and the lender will not remove a name without it. If they refuse, the route is a financial order through the court.
Sometimes a consent order or financial order. If you are divorcing, the lender may want to see the court order setting out who gets the property and who pays what, particularly where maintenance is being used as income or where the split is unequal. Without it, some lenders will still proceed on a signed agreement; others wait for the order. Your solicitor will tell you which applies.
Unmarried couples have no divorce process, but the mortgage mechanics are identical. Joint and several liability applies, a transfer of equity removes a name, and the lender runs the same single affordability test. What differs is the legal position on who owns what share, which turns on how the property was held (joint tenants or tenants in common) and any deed of trust. Take legal advice on that part.
What I see in practice
In my cases the pattern is simple. If one person can afford the mortgage on their own, they keep the house and the other party is released. If they cannot, they look at raising the money another way, and if that does not work either, the house is sold. The lender’s affordability assessment on the person staying is the decision point.
Speak to an expert
If one of you plans to keep the house, send me the current mortgage statement, a rough valuation and the income staying in the property and I will tell you whether the numbers work before you spend on solicitors.
What if neither of us can afford the mortgage alone?
Then the honest options are to sell, or for the mortgage to stay joint for a period under a written agreement or court order. The second is common where children are settled and one parent stays until a set date or the youngest reaches a certain age. The person who moved out stays on the mortgage, which affects their ability to borrow for a new home because the joint payment is counted as their commitment in full.
A guarantor or a family member joining the application can bridge a shortfall in some cases, and a longer term reduces the monthly payment the affordability model has to fit. Both have limits and both depend on the lender.
Check the fixed period first. A transfer of equity with the current lender inside a fix usually avoids the early repayment charge; moving lender does not. If the fix ends within six months, waiting can save the charge.
Whatever route you take, keep paying the mortgage in full while it is sorted out. A missed payment during a separation lands on both credit files and makes the eventual application harder for whichever of you needs one. Which of the three routes fits depends on the equity, the income staying in the house and what the two of you, or the court, agree. The residential mortgage page covers what a new sole application involves.
Your home may be repossessed if you do not keep up repayments on your mortgage.
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